| Entries |
| Document | Title | Date |
|---|
| 20080251053 | Evaporative emissions control system - The invention provides a fuel tank venting system for an engine. The fuel tank venting system includes a fuel tank, a carburetor, and a fuel tank vent passageway. The carburetor is coupled to the fuel tank. The fuel tank vent passageway is in fluid flow communication with the fuel tank and at least partially disposed inside the carburetor. The fuel tank venting system may further include an air filter and a roll-over valve. The air filter may include a carbon-impregnated foam element. | 10-16-2008 |
| 20080276912 | Hand-Held Power Tool - A hand-held power tool has at least one operating medium tank having at least one opening. At least one connecting conduit is arranged external to the operating medium tank. At least one connecting member is inserted into the opening, wherein the at least one connecting conduit is connected to the at least one connecting member. Securing devices that secure a rotational position of the at least one connecting member in the opening are provided. | 11-13-2008 |
| 20080295809 | LIQUID SEPARATOR AND VENTED FUEL TANK ARRANGEMENT - A fuel system includes a fuel tank and a liquid separator. The fuel tank includes an interior in which liquid fuel and fuel vapor are contained, and has at least one vent in fluid communication with a vapor dome in the interior of the fuel tank. The liquid separator is in fluid communication with the at least one vent in the fuel tank, and has a fuel port disposed at a lower elevation than the at least one vent to enable the liquid separator to be passively aspirated under negative pressure conditions within the fuel tank. The liquid separator may be placed inside or outside the fuel tank. | 12-04-2008 |
| 20080308072 | HYDROCARBON SEPARATION FROM AIR USING MEMBRANE SEPARATORS IN RECIRCULATION TUBE - A tubular separation system for separating a mixture of hydrocarbons and air at a fuel tank in an automotive vehicle, comprises; a fuel tank containing hydrocarbon fuel and a mixture of hydrocarbon fuel vapor and air; a fuel filler pipe connected to the fuel tank for conveying hydrocarbon fuel from a source of hydrocarbon fuel into the fuel tank; a separation module comprising a membrane for separating the hydrocarbon vapor from air; a first tubular member between the fuel tank and the separation module for conveying the mixture of air and hydrocarbon fuel vapor from the fuel tank to the separation module; a second tubular member between the separation module and the fuel tank for conveying hydrocarbon fuel vapor, separated from the mixture of air and hydrocarbon fuel vapor, from the separation module to the fuel tank; and a third tubular member between the separation module and the fuel filler pipe for conveying air, separated from the mixture of air and hydrocarbon fuel vapor, from the separation module to the fuel filler pipe. A device that provides a pressure differential across said membrane is employed to facilitate the separation of air and hydrocarbon from the air/hydrocarbon mixture. The air containing any residual fuel vapor is directed to an emissions canister where the residual fuel vapor is adsorbed and eventually consumed by the internal combustion engine while the air is released to the atmosphere. | 12-18-2008 |
| 20090025693 | Filtration Device for Use with a Fuel Vapor Recovery System - A filtration device for filtering air for use with a fuel vapor recovery system. According to one aspect, the device includes a housing defining a chamber having a rotational axis an upper end and a lower end, a cap closes the housing and includes at least one generally helical passageway helically extending generally toward the lower end of the chamber and includes at least one air inlet. According to another aspect, the device includes a non-circular filter element disposed between an air inlet and an air outlet. | 01-29-2009 |
| 20090031996 | EVAPORATIVE EMISSION CONTROL SYSTEM AND METHOD FOR INTERNAL COMBUSTION ENGINE HAVING A MICROCONDENSER DEVICE - A canisterless evaporative emission control system for an internal combustion engine includes a fuel tank for the internal combustion engine wherein vaporized fuel is generated and a microcondenser device for processing the vaporized fuel received from the fuel tank. An inlet passageway establishes fluid communication between the fuel tank and the microcondenser device for delivering the vaporized fuel from the fuel tank to the microcondenser device. | 02-05-2009 |
| 20090126700 | AUTOMATIC ENGINE OIL CHANGER/RECYCLER SYSTEM - A vehicle mounted oil recovery system uses a conduit to transport oil from an engine lubricating system of the vehicle to a retort system, mounted upon the vehicle. The retort system distills the transported oil, through vaporization, into individual components. These vaporized components are further subjected to a slight cooling to separate water and fuel vapor from oil vapor. The oil vapor condenses and returned to the engine lubricating system of the vehicle. On the other hand, the vaporized water and fuel is transported to a fuel system of the vehicle for combustion thereof. The heat needed for vaporization is extracted from an exhaust system of the vehicle by mounting the retort system directly upon the exhaust system. The retort system captures the heat from the exhaust system of the vehicle to provide energy for the vaporization of the transported oil into individual components. | 05-21-2009 |
| 20090133672 | Natural vacuum leak detection device using diaphragm-seal mechanism - A system and method are provided for detecting a leak in an automotive fuel system. The functions of vacuum sensing, vacuum relief (high vacuum relief level) and pressure relief (high pressure relief level) are all performed by a single self-actuated diaphragm-seal valve mechanism. | 05-28-2009 |
| 20090293847 | METHOD AND APPARATUS FOR MONITORING FOR A RESTRICTION IN A STAGE II FUEL VAPOR RECOVERY SYSTEM - A system and method for detecting a failure in a Stage II fuel vapor recovery system is disclosed. | 12-03-2009 |
| 20090293848 | DRY AIR FUEL VENT BREATHER - A dry air fuel vent breather to remove the moisture from air entering a fuel system is provided. When air flows in to the breather from the outside, it is forced through a desiccant cartridge. When air is exhausted from the system, it bypasses the desiccant cartridge. | 12-03-2009 |
| 20090301444 | FUEL STABILIZER FOR INTERNAL COMBUSTION PETROL ENGINE - The present invention discloses a device called as Fuel Stabilizer ( | 12-10-2009 |
| 20090308358 | FUEL VAPOR STORAGE AND RECOVERY SYSTEM - A fuel vapor storage and recovery system of an internal combustion engine includes a fuel tank and a filter device arranged in a tank venting line. A heat exchanger is disposed in the tank venting line. The heat exchanger cools the fuel vapors flowing from the fuel tank to the filter device and heats air that is aspirated for scavenging the filter device. | 12-17-2009 |
| 20090320805 | HEATER FOR FLUIDS - To improve environmental protection from hydrocarbon emissions particularly from vehicles a heater for fluids comprising heating elements of an electrically conductive monolith, wherein the heater comprises a passageway for the fluid to be heated with a defined flow direction of the fluid during heating operation, the heater comprising at least two heating elements arranged side by side inside the passageway, so that they are arranged in parallel with respect to the fluid flow, is proposed improved in that one of the at least two heating elements is a controlled heating element, which has a slightly larger heating power, and a temperature sensor is provided at or close to the downstream end of the controlled heating element, and wherein the temperature sensor is connected to a control means for temperature control during heating operation of the heater; and a method of operating such | 12-31-2009 |
| 20100012097 | OIL SEPARATOR FOR GAS-POWERED COMBUSTION ENGINES - An oil separator is provided to deposit gas fuel contained in the oil components for connection to a gas fuel line to a gas-powered combustion engine, which is a housing with an inlet opening and an outlet opening for gas fuel, one recorded in the cabinet, which gas fuel then is flowable through the filter element, the sealing between a with the airflow associated stream dream and a receipt with the airflow associated outlet opening starting area is, and one in the inlet opening in the direction of gravity below an outlet with the airflow associated oil collection tank to record in the entrance area by gravity separation from the remote oil gas fuel includes. Furthermore, the oil separator a second oil collection tank to record from the filter element expiring contain oil. | 01-21-2010 |
| 20100018506 | EMISSION CONTROL DEVICES FOR AIR INDUCTION SYSTEMS OF INTERNAL COMBUSTION ENGINES - An emission control device for an air induction system of an internal combustion engine having high adsorption capacity, yet low flow resistance is disclosed. The AIS emission control device comprises a first case including an outlet-opening connected to an intake manifold of the engine; a second case including an inlet-opening for the intake air; and an adsorbent element positioned in a plane across the intake airflow, wherein the adsorbent element has an opening area such that the control device has a pressure drop of less than about 1 inch H | 01-28-2010 |
| 20100024781 | Compressed Fuel Supply System - The compressed fuel supply system is a simple low cost fuel fumes delivery system that will replace the present day liquid fuel delivery system used on the present day internal combustion engines. The system will deliver a constant supply of fuel fumes for all ranges of required engine performance. This invention is designed for the standard modern internal combustion engine ( | 02-04-2010 |
| 20100089368 | AIR DUCT FOR ENGINE - An air duct | 04-15-2010 |
| 20100101541 | Method for inspecting a tank ventilation device, control device, and internal combustion engine - A robust method, an accordingly designed control device, and an internal combustion engine, enables the proper performance of a tank ventilation device during the operation of the internal combustion engine. For this purpose, the position of a pressure switch of the tank ventilation device is detected, which indicates the pressure present in the tank ventilation device, a controllable tank ventilation valve, which is disposed in a connecting line between a fuel vapor accumulator and an intake pipe of the internal combustion engine, is opened at least partially during the operation of the internal combustion engine, the position of the pressure switch is again detected after opening of the tank ventilation valve, the proper performance of the tank ventilation device; is analyzed based on a comparison of the position of the pressure switch before opening the tank ventilation valve to the position of the pressure switch after opening the tank ventilation valve. | 04-29-2010 |
| 20100252005 | EVAPORATIVE FUEL TREATMENT APPARATUS FOR MOTOR VEHICLE - An evaporative fuel treatment apparatus for a motor vehicle of the present invention treats an evaporative fuel produced in a fuel tank mounted in a motor vehicle or an evaporative fuel in an evaporative fuel reservoir for temporarily storing the evaporative fuel produced in the fuel tank and returns the evaporative fuel to the fuel tank. The evaporative fuel treatment apparatus is activated, while the motor vehicle is parked, by use of electric power supplied from an outside of the motor vehicle or electric power supplied from a natural-energy power generator mounted in the motor vehicle. | 10-07-2010 |
| 20100275886 | Engine Fuel Boil Off Management System - An engine assembly may include a crankcase ventilation assembly having a fuel separator assembly. The fuel separator assembly may include a condensing unit and a vaporizing unit. The condensing unit may include a gas region and a liquid retaining region. A gas inlet may be in fluid communication with the gas region and a gas flow from the engine block including fuel vapor. The condensing unit may convert the fuel vapor to liquid fuel. The first gas outlet may be in fluid communication with an engine air inlet and provide a remainder of the gas flow thereto. The fluid region may store and provide the liquid fuel to the vaporizing unit through a liquid inlet. The vaporizing unit may convert the liquid fuel to fuel vapor and a second gas outlet may provide the fuel vapor to the air inlet. | 11-04-2010 |
| 20100300413 | Variable Venturi System and Method for Engine - Systems and methods for an engine are described. In one example, a system may include a variable venturi coupled in an intake of the engine; an exhaust gas recirculation system having an exhaust gas recirculation flow path, the exhaust gas recirculation flow path coupled to the variable venturi; and a vacuum-utilizing device or system coupled to the variable venturi. In another example, a method may include coordinating adjustment of an exhaust gas recirculation valve coupled to the exhaust gas recirculation system, a fuel vapor purging valve coupled to the fuel vapor purging system, and the variable venturi in response to operating conditions. | 12-02-2010 |
| 20110067676 | METHOD AND APPARATUS FOR CONTROLLING A TANK VENT VALVE - In a method for controlling a tank vent valve ( | 03-24-2011 |
| 20110088662 | METHOD OF PACKAGING A MEMBRANE FOR USE IN A VENTING VALVE - A venting valve comprises a cover including a flow path in fluid communication with an evaporative emissions system and a liquid discriminating and vapor permeable membrane connected to the cover. At least a portion of the outer surface of the membrane comprises a plurality of alternating curved crests and valleys. In other embodiments, the membrane comprises a first and second layer defining a gap therebetween, wherein at least a portion of the membrane is spirally wound. In other embodiments, the venting valve includes at least one protrusion configured to support and shape the membrane, wherein at least a portion of the membrane is curved. | 04-21-2011 |
| 20110100336 | VAPOR RECOVERY SYSTEM HAVING VACUUM BREAK FITTING WITH FLOW RESTRICTOR - A vapor recovery system between a fuel tank and an engine intake manifold includes a T-fitting to provide a vacuum break. The first and second ends of the T-fitting are connected in line with a vapor recovery hose, and the third end draws outside air into the T-fitting and may have a filter attached thereto. A flow restrictor also is provided in the first end of the T-fitting, to limit the flow of vapor from the fuel tank and maintain adequate vapor space in the tank. | 05-05-2011 |
| 20110168139 | Apparatus for Measuring a Hydrocarbon Concentration and Internal Combustion Engine - An apparatus for measuring a hydrocarbon concentration of a gas stream in a line includes at least one sensor for measuring a hydrocarbon concentration, the position of said sensor being set off in relation to the line. | 07-14-2011 |
| 20110174276 | Internal Combustion Engine and Method for Opertating an Internal Combustion Engine of this Type - During operation of an internal combustion engine system which has at least one sensor for measuring a hydrocarbon content of a gas stream in a line, a temperature is determined at the at least one sensor. If the temperature is greater than a prespecified temperature, the flow of gas through the line is interrupted. | 07-21-2011 |
| 20110186019 | MOTOR VEHICLE - A motor vehicle has an internal combustion engine, a fuel tank and a tank ventilation device. The fuel tank is connected via a first and second tank ventilation lines to an intake tract of the internal combustion engine. A hydrocarbon store has first and second chambers separated by a diaphragm. The first chamber is connected in communicating fashion to the first tank ventilation line and the second chamber is connected in communicating fashion to the second tank ventilation line. Valves are arranged in the first tank ventilation line upstream and downstream of the first chamber. A valve is arranged in the second tank ventilation line between the second chamber and the intake tract. | 08-04-2011 |
| 20110192382 | FUEL TANK AND FUEL VAPOR TREATMENT DEVICE EQUIPPED WITH THE FUEL TANK - A fuel tank that stores a liquid fuel is equipped with a float member floating on the fuel stored in the fuel tank. In this fuel tank, the float member is so formed as to cover a liquid surface of the liquid fuel. | 08-11-2011 |
| 20110214645 | SYSTEM AND METHOD FOR CARBURETOR VENTING - A system for venting vapors from a fuel tank of an engine, an engine with such a system, and related methods are disclosed. In one embodiment, such a system includes a coupling device having first, second, and third ports that are connected at a junction, where the first and second ports are respectively configured to be at least indirectly coupled to the tank and a carburetor, respectively, and where the third port is in communication with an outside environment via a filter. The system further includes an obstruction that is formed at a location downstream of the junction en route toward the carburetor, the location being either within the coupling device or at a position downstream of that device, such that at least some of the vapors can proceed from the tank to the carburetor and at least some air from the environment is able to proceed toward the tank. | 09-08-2011 |
| 20110214646 | FUEL VAPOR PROCESSORS - A fuel vapor processor has a fuel tank configured to reserve fuel, a canister containing adsorbent capable of adsorbing fuel vapor vaporized in the fuel tank, a separator receiving a fuel vapor containing gas from the fuel tank, a regulator controlling the volume of the fuel vapor containing gas supplied to the separator, and a suction unit capable of removing the fuel vapor from the canister. The separator selectively passes the fuel vapor therethrough in order to divide the fuel vapor containing gas into a first gas mainly containing the fuel vapor and a second gas having a fuel vapor density lower than the first gas. The suction unit suctions the first gas from the separator in order to return the first gas into the fuel tank. The second gas is introduced into the canister or is released into the atmosphere. | 09-08-2011 |
| 20110303197 | MICROCONDENSER DEVICE - A microcondenser device for an evaporative emission control system associated with an internal combustion engine includes a housing having a lower wall and at least one side wall extending upward from the lower wall. The lower wall and the at least one side wall together defining a chamber in the housing. A thermoelectric element is supported by the at least one side wall in spaced relation relative to the lower wall. An inlet is defined in the housing for admitting fuel vapor into the chamber. A condensation outlet is defined in the housing for discharging liquid fuel that is condensed from the fuel vapor in the chamber. A porous heat sink element is received in the chamber for absorbing the fuel vapor admitted through the inlet. The porous heat sink element is in conductive thermal contact with the thermoelectric element. | 12-15-2011 |
| 20120132179 | FUEL VAPOR LEAKAGE INSPECTION APPARATUS - A canister attachment portion includes a canister passage communicating with an inside of a canister. An air passage has a first end connected to communicate with the canister passage and a second end connected with atmosphere. A pumping device increases and decreases an inside pressure of the canister, and one end of the pumping device is connected to communicate with the canister passage and the other end of the pumping device is connected to the air passage. A switching valve switches the canister passage to communicate with the air passage or the pumping device. A throttle is provided in the bypass passage. A housing defines the air passage and a bypass passage, and accommodates the pumping device, the switching valve and the throttle. The filter is provided in the air passage and is accommodated in the housing. | 05-31-2012 |
| 20120152209 | MOTOR VEHICLE - A motor vehicle has an internal combustion engine ( | 06-21-2012 |
| 20120180766 | METHOD AND APPARATUS FOR CAPTURING AND CONTROLLING FUGITIVE GASES - A method of providing fugitive gases to an engine air supply. An air filter is positioned on the engine intake of said engine. The air filter creates a negative pressure in the engine intake downstream of the air filter. A source of fugitive gases pass to the engine intake and are collected by the negative pressure downstream of the air filter. | 07-19-2012 |
| 20120227712 | Vaporize fuel for gasoline engines - Vaporize, in its simplest form, is gasoline vapors used to fuel a gasoline powered engine. | 09-13-2012 |
| 20120240902 | EVAPORATED FUEL TREATMENT DEVICE FOR MOTORCYCLE - A charge pipe passage includes a second pipe passage part which is connected to a fuel tank by way of a first pipe passage part and extends toward the other side from one side in the vehicle widthwise direction, and a third pipe passage part which is communicably connected with the second pipe passage part on the other side in the vehicle widthwise direction and has a highest part arranged at a highest position of the charge pipe passage at an intermediate position thereof. A first check valve is interposed on the third pipe passage part downstream of the highest part, an atmospheric air introducing pipe passage is connected to the third pipe passage part upstream of the first check valve, and a second check valve is interposed on the atmospheric air introducing pipe passage at a position higher than the highest part. | 09-27-2012 |
| 20120240903 | EVAPORATED FUEL TREATMENT DEVICE FOR MOTORCYCLE - A charge pipe passage includes: a first engine-side pipe passage part which extends vertically; a second engine-side pipe passage part which is connected to a lower end of the first engine-side pipe passage part on one side in the vehicle widthwise direction and extends from one side to the other side in the vehicle widthwise direction above the engine body; and a third engine-side pipe passage part which is communicably connected to the second engine-side pipe passage part on the other side in the vehicle widthwise direction and is connected to the engine body, and at least a part of the charge pipe passage between a frame-side support part and an engine-side support part is formed of an elastic tube. | 09-27-2012 |
| 20120247432 | EVAPORATIVE EMISSION PURGING SYSTEM - In order to create enough vacuum pressure for the evaporative emissions, to be drawn into the intake air of an internal combustion engine, the present disclosure recites a purge booster disposed in the airflow between the intake air compressor and the air cleaner, the purge booster has a venturi tube comprising a gradually narrowed inner surface with an introduction passage therein. The airflow drawn from the air cleaner to the intake air compressor passes the inside space of the narrowed inner surface, thus, creating vacuum pressure for purging evaporative emissions by venturi. | 10-04-2012 |
| 20130008413 | EVAPORATED FUEL PURGE DEVICE - An evaporated fuel purge device integrally includes a main passage, a fuel inlet passage, a fuel outlet passage, an ejector, an air inlet passage, and an air outlet passage. Evaporated fuel flows into the main passage through the fuel inlet passage, and flow out of the main passage through the fuel outlet passage. Intake air flows into the ejector from a downstream of a turbocharger through the air inlet passage, and flows out of the ejector to an upstream of the turbocharger through the air outlet passage. At least three of the fuel inlet passage, the fuel outlet passage, the air inlet passage, and the air outlet passage are arranged to extend parallel with each other. | 01-10-2013 |
| 20130152904 | Turbo Purge Module For Turbocharged Vehicle - A turbo purge module includes a purge valve connected between a vapor collection canister and an intake manifold. A venturi nozzle receives pressurized air from the turbocharger, when the turbocharger is operating, to create a vacuum to draw vapors from the canister through the purge valve to an inlet of the turbocharger and the intake manifold to be purged in the engine. A first check valve prevents pressure from the intake manifold from reaching the canister when the turbocharger is operating. A second check valve prevents vacuum pressure from the intake manifold from communicating with the venturi nozzle when the turbocharger is at idle, with vapor from the canister being drawn through the purge valve and the intake manifold to be purged in the engine. The purge valve, venturi nozzle, first check valve, and second check valve are integrated into a single component. | 06-20-2013 |
| 20130186374 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - Disclosed is a control device applied to an internal combustion engine provided with a fuel vapor treatment system for treating collected fuel vapor by purging the collected fuel vapor into intake air downstream from an air flowmeter ( | 07-25-2013 |
| 20130213364 | FUEL TANK FOR MOTOR VEHICLES - The invention relates to a fuel tank ( | 08-22-2013 |
| 20140020663 | VALVE ASSEMBLY FOR HIGH-PRESSURE FLUID RESERVOIR - A valve assembly is disclosed for controlling fluid flow between two reservoirs. The valve assembly includes a relief valve arranged inside the housing and configured to open a first fluid flow path when the first reservoir is above a first predetermined pressure value. | 01-23-2014 |
| 20140026865 | PASSIVE VENTURI PUMP FOR LEAK DIAGNOSTICS AND REFUELING - Systems and methods for operating a hybrid electric vehicle with a passive venturi pump are disclosed. In one example approach, a method comprises: during vehicle motion, passing air through a venturi coupled to the vehicle to generate vacuum; storing the generated in an accumulator; and, in response to a condition, discharging the stored vacuum to a vacuum consuming system of the vehicle. | 01-30-2014 |
| 20140158094 | CARBON HEATING ELEMENT FOR EVAPORATIVE EMISSION CANISTER - An evaporative emissions control system for reducing the amount of fuel vapor emitted from a vehicle includes a canister containing a sorbent material and a cartridge heater disposed at least partially within the canister in direct contact with the sorbent material. Electrical terminals for applying power to a heating element within the heater are disposed external to the canister. At least one heat sink may be included within the canister in direct contact with the heater. A method of manufacturing an evaporative emission control system that includes a cartridge heater disposed in a canister is also presented. | 06-12-2014 |
| 20140216420 | METHOD FOR OPERATING A FUEL SYSTEM AND FUEL SYSTEM - The invention relates to a method for operating a fuel system ( | 08-07-2014 |
| 20140251284 | MULTI-PATH PURGE EJECTOR SYSTEM - Systems and methods for a multi-path purging ejector are disclosed. In one example approach, a multi-path purge system for an engine comprises an ejector including a restriction, first and second inlets, and an outlet, and a shut-off valve hard-mounted to an intake of the engine and coupled to the outlet. | 09-11-2014 |
| 20140290628 | SYSTEM WITH LIQUID CONTAINMENT TANK INCLUDING AN IN-LINE LIQUID VAPOR DISCRIMINATING VALVE EXTERNAL TO THE TANK - A system for containing liquid and venting vapor includes a liquid containment tank having an interior space. A first conduit is external to and operatively connected with the tank. The first conduit has a first internal passage fluidly communicable with the interior space. A second conduit is external to the tank, and has a second internal passage. A liquid vapor discriminating (LVD) valve is external to the tank and has a housing defining an inlet connected to the first conduit, an outlet connected to the second conduit, and an internal housing cavity. The valve includes a membrane filter positioned in the internal housing cavity between the inlet and the outlet. The membrane filter is configured to prevent the passage of liquid through the membrane and allow the passage of vapor through the membrane. | 10-02-2014 |
| 20140318504 | AIR INTAKE SYSTEM HYDROCARBON TRAP PURGING - Methods and systems for purging a hydrocarbon trap in an engine intake in a vehicle are disclosed. In one example approach, a method comprises during an engine off condition, operating a pump in a purge line coupled to a fuel vapor canister in an emission control system to deliver fuel stored in a hydrocarbon trap in an intake of the engine to the fuel vapor canister. | 10-30-2014 |
| 20140318505 | LIQUID FUEL TRAP DEVICE - A liquid fuel trap device for a vehicle fuel system includes a housing forming a confined space and including an outlet port connectable to a fuel vapor recovery system via a fuel vapor passage; and a valve capable of discharging liquid fuel from the confined space into a fuel tank. The housing includes at least two retention devices adapted to impede fuel in the housing from reaching the outlet port in angled positions of the housing. | 10-30-2014 |
| 20150020779 | FUEL TANK PRESSURE RELIEF VALVE CLEANING - Methods and systems for cleaning a pressure relieve valve for a fuel tank are disclosed. In one example approach a method for cleaning a pressure relief valve that is normally activated at a preset negative pressure in a fuel system comprises, during a test cycle, reducing fuel system pressure to a predetermined pressure which is higher than the preset pressure, and measuring pressure changes in the fuel system; and when not in the test cycle, periodically reducing the fuel system pressure to a third pressure which is less than said preset pressure. | 01-22-2015 |
| 20150114359 | FUEL SEPARATION SYSTEM FOR REDUCING PARASITIC LOSSES - Systems and methods for separating higher octane fuel from a fuel mixture are presented. In one example, higher octane fuel is separated from lower octane fuel and allowed to condense in a fuel tank holding higher octane fuel so that parasitic engine losses are not increased by having to separate higher octane fuel from lower octane fuel a second time. The approach may be applied to fuel systems that include multiple fuel tanks storing different types of fuel. | 04-30-2015 |
| 20150122228 | METHOD AND SYSTEM FOR ADJUSTING A FUEL TANK ISOLATION VALVE - Methods and systems are provided for adjusting and diagnosing a position of a fuel tank isolation valve of a fuel system. In one example, a method may include adjusting the fuel tank isolation valve via electrical pulses and tracking a position of the FTIV by counting each of the electrical pulses. When a vacuum is created in the fuel system, the method may include verifying the position of the FTIV based on resulting fuel system pressures. | 05-07-2015 |
| 20150122229 | METHOD AND SYSTEM FOR ADJUSTING A FUEL TANK ISOLATION VALVE - Methods and systems are provided for adjusting and diagnosing a position of a fuel tank isolation valve (FTIV) of a fuel system. In one example, a method comprises adjusting a FTIV of a fuel system by sending an electrical pulse to the FTIV; and comparing a current draw of the FTIV to a known current draw profile to verify the position of the FTIV. In this way, the position of the FTIV may be diagnosed, thereby resulting in increased accuracy of subsequent valve control. | 05-07-2015 |
| 20150144110 | METHOD AND CONTROL DEVICE AND DETECTION DEVICE FOR RECOGNIZING AN ENTRY OF A MOTOR VEHICLE INTO A TRAFFIC LANE OPPOSITE A DRIVING DIRECTION - A device for determining the loading of a fuel vapor accumulator of an internal combustion engine includes: a vibratory mounting of the fuel vapor accumulator; and a sensor for measuring a natural frequency of the fuel vapor accumulator. For determining the loading of a fuel vapor accumulator of an internal combustion engine, a natural frequency of the fuel vapor accumulator mounted vibratorily is measured. | 05-28-2015 |
| 20150292421 | METHOD AND SYSTEM FOR FUEL VAPOR MANAGEMENT - Methods and systems are provided for improving the efficiency of canister purge completion. Based on engine operating conditions, a canister is purged to a compressor inlet or a throttle outlet. During purging conditions, as canister loads change, a purge flow through the canister is varied so that a fixed preselected portion of total engine fueling is delivered as fuel vapors. | 10-15-2015 |
| 20150322903 | SYSTEMS AND METHODS FOR CONTROLLING FUEL VAPOR FLOW IN AN ENGINE-DRIVEN GENERATOR - An engine-driven generator that controls fuel vapor flow is provided. The engine-driven generator includes an engine having an air intake, wherein the engine is configured to drive a generator. The engine-driven generator also includes a fuel tank coupled to the engine and configured to provide fuel to the engine. The engine-driven generator includes a valve coupled between the air intake of the engine and the fuel tank. The engine-driven generator also includes a control device configured to transition the valve between a first position and a second position. The first position allows fuel vapor to flow between the fuel tank and the air intake of the engine and the second position inhibits the fuel vapor from flowing between the fuel tank and the air intake of the engine. | 11-12-2015 |
| 20150330349 | METHOD AND APPARATUS FOR DETECTING LEAKAGE OF FUEL EVAPORATIVE GAS - Disclosed is an apparatus and method for detecting a leakage of fuel evaporative gas in a vehicle fuel system. When preset condition information is satisfied during operation of a vehicle, the apparatus and method may control a canister purge valve, and generate detection information on a leakage of fuel evaporative gas based on switch state information of a pressure switch provided in a natural vacuum leakage detection (NVLD) module, thereby detecting a leakage of the fuel evaporative gas during operation. | 11-19-2015 |
| 20150369184 | INTEGRAL PURGE EJECTOR TEE ARRANGEMENT IN A TURBOCOMPRESSOR - A boost purge ejector tee arrangement is integrated into a turbocompressor associated with an engine and includes first and second passages, an inlet port and a nozzle. The first passage is formed into a housing of the turbocompressor and includes an outlet in communication with a turbocompressor inlet. The second passage is formed into the housing and includes a boost air inlet in communication with an internal outlet area of the turbocompressor and intersecting the first passage. The inlet port is associated with the housing and intersects the first passage. The nozzle is positioned in the first passage such that an outlet of the nozzle is proximate the intersection of the inlet port and first passage. During a boost mode of operation, the second passage is adapted to receive boost air flow, which flows through the nozzle thereby creating a vacuum and drawing purge through the inlet port. | 12-24-2015 |
| 20160069304 | EVAPORATIVE SYSTEM - An evaporative system is for an internal combustion engine. The internal combustion engine has an intake pipe equipped with a supercharger to pressurize intake air. The evaporative system includes an ejector, an ejector passage, and a pressure sensor. The ejector is to draw intake airflow from a downstream of the supercharger to an upstream of the supercharger to cause a negative pressure to draw fuel vapor into the upstream of the supercharger. The ejector passage is branched from the downstream of the supercharger and is returned through the ejector to the upstream of the supercharger. The pressure sensor is communicated with the ejector passage to detect pressure in the ejector passage. | 03-10-2016 |
| 20160115912 | VEHICLE - The vehicle has a fuel vapor releasing device, a brake booster, a negative pressure pump, and a pump suction passage which puts the fuel vapor releasing device, the constant pressure chamber and a suction port of the negative pressure pump in communication. The vehicle also has an air intake passage in communication and a brake negative pressure control valve which switches selectively between communication of the suction port with the constant pressure chamber and disconnection of the communication. When the negative pressure pump is actuated to produce a negative pressure which is supplied to the constant pressure chamber of the brake booster, on condition that a suction pressure of the pump suction passage is equal to or lower than a booster pressure of the constant pressure chamber, the brake negative pressure control valve is opened. | 04-28-2016 |
| 20160153370 | System and method for use of purge gas to terminate internal combustion engine operation | 06-02-2016 |
| 20160153410 | EVAPORATED FUEL PROCESSING DEVICE | 06-02-2016 |
| 20160252052 | EVAPORATIVE EMISSIONS FUEL SYSTEM | 09-01-2016 |
